Firearm chamber loading indicator



Patented Mar. 4, 1947 UNITEDl STATES PATENT oEEicE 2,416,712 FIREARMCHAMBER LOADING INDICATOR William H. Parker, Millville, N. J.

Application November 3, 1944, Serial No. 561,739

1 Claim.

The present invention relates to new and useful improvements iii'rearmsand more particularly to safety means therefor whereby the user of thefirearm can easily 'determine whether or not the same is loaded.

More specically, the invention embodies the provision of a windowopening in the barrel of the firearm adjacent the breech or inner endthereof and through which the user of the iirearm may see whether acartridge or shell is in firing position in the barrel.

A further object is to provide safety means for firearms of thischaracter of simple and practical construction, which is efficient andreliable in use, relatively inexpensive to manufacture and otherwisewell adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction asmore fully hereinafter described and claimed, reference being had to theaccompanying drawings forming part hereof, wherein like numerals referto like parts through out, and in which:

Figure 1 is a fragmentary top plan view of a single barrel shot-gunconstructed in accordance with the present invention.

Figure l2 is a fragmentary longitudinal sectional view through the rearportion of the barrel, and

Figure 3 is a transverse sectional ,view taken substantially on a line3-3 of Figure 2.

Referring now to the drawings in detail, wherein for the purpose ofillustration I have disclosed a preferred embodiment of the invention,the numeral 5 designates the barrel of a shot-gun or similar rearmadapted for receiving a cartridge 6.

An opening 1 is formed in the top of the barrel, the opening in thepresent instance being of rectangular shape with the edges of theopening tapering inwardly as shown in Figures 2 and 3 of the drawings.However, said opening may be of any other desirable form.

Snugly tted in the opening is a transparent plug 8 of glass or othertransparent plastic materlal, the inner surface of the plug being curvedas shown at 9 flush with the bore of the barrel to prevent interferencewith the insertion of the cartridge 6 therein.

the fact that the gun is loaded will then beimmediately apparent tousers thereof.

While I have illustrated the invention as used upon a single barrelshot-gun it will be apparent that the same is adapted for use upondouble barrel shot-gun or other types of rearms in which cartridges orshells are used.

It is believed that the details of construction, manner of use andadvantages of the device will be readily understood from the foregoingwithout further detailed explanation.

Having thus described the invention, what I claim is:

A barrel for firearms of a type including a cartridge chamber adaptedfor firing a cartridge, said cartridge chamber having an opening in itswall in the region of the cartridge, a transparent plug fitted in saidopening, the walls of said opening and the edges of said plug havinggrooves formed therein and a snap ring seatedin said grooves.

WILLIAM H. PARKER.

REFERENCES CITED The following references are of record in the le ofthis patent:

UNITED STATES PATENTS Number Name Date 215,022 Scott May 6, 18792,134,406 Jacobs Oct. 25, 1938 945,328 Johnson Jan. 4, 1910 1,219,895Yanert Mar. 20, 191'? FOREIGN PATENTS Number Country Date 371,852 GermanMar. 22, 1923 395,045 French Dec. 17, 1908

